Thermal Convection Forecast using a Theoretical&nbsp;Model Calibrated with Statistical Data from Soaring Flights

Cristian V. Vraciu; Bogdan Antonescu; Dorinel Visoiu

doi:10.20944/preprints201810.0684.v1

Preprint Article Version 1 This version is not peer-reviewed

Version 1 : Received: 29 October 2018 / Approved: 29 October 2018 / Online: 29 October 2018 (13:10:05 CET)

A forecasting scheme of the thermal updraft velocity based on a theoretical model and data collected from flights records at gliding competitions, is presented. The forecasting scheme was based on the hypothesis that there is linear relationship between the overheat function at ground surface and the temperature difference between soil and air. The proportionality factor of this relationship was determined experimentally using observations recorded during gliding flights. The results showed that based on this simple scheme forecasting thermal convection is possible at any geographical location.

Thermal updraft velocity; Thermal convection; Soaring; Atmospheric Boundary Layer; Soaring birds; Sailplane; Aviation safety.

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Thermal Convection Forecast using a Theoretical Model Calibrated with Statistical Data from Soaring Flights

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